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Musculoskeletal deterioration in men accompanies increases in body fat
Author(s) -
Pasco Julie A,
Gould Haslinda,
Brennan Sharon L,
Nicholson Geoff C.,
Kotowicz Mark A
Publication year - 2014
Publication title -
obesity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.438
H-Index - 199
eISSN - 1930-739X
pISSN - 1930-7381
DOI - 10.1002/oby.20496
Subject(s) - lean body mass , medicine , fat mass , osteoporosis , zoology , dual energy x ray absorptiometry , bone mineral , dual energy , endocrinology , body weight , body fat percentage , body mass index , biology
Objective To examine body fat and musculoskeletal changes in men over 5 years. Methods Body composition was evaluated for men in the Geelong Osteoporosis Study using whole body dual energy X‐ray absorptiometry (DXA) during two time‐periods. DXA was performed for 1329 men (25‐96 years) during 2001‐2006 and for 900 men (25‐98 years), 2006‐2011. The masses of fat, lean, and bone were expressed relative to the square of height (kg/m 2 ). Each compartment was also expressed as a percentage relative to body weight (%fat, %lean, %bone). Results Mean BMI increased from 26.9 kg/m 2 in 2001‐2006, to 27.2 kg/m 2 in 2006‐2011 ( P = 0.04). Mean fat mass increased by 9.0% from 6.98 kg/m 2 (95%CI 6.84‐7.11) in 2001‐2006, to 7.60 kg/m 2 (7.44‐7.77) in 2006‐2011 ( P < 0.001); mean lean mass decreased by 0.9%, from 18.92 kg/m 2 (18.83‐19.01) to 18.75 kg/m 2 (18.64‐18.86) ( P = 0.02), and mean bone mass decreased 1.6% from 1.041 kg/m 2 (1.034‐1.047), to 1.024 kg/m 2 (1.016‐1.032). Mean %fat increased from 23.4% to 25.2%, mean %lean decreased from 72.6% to 70.9% and mean %bone decreased from 4.0% to 3.9% (all P < 0.05). Conclusions An increase in BMI, which reflects a substantial increase in body fat mass and declines in both lean and bone mass was reported. This may have implications for future development of bone fragility, sarcopenia, and sarcopenic obesity.